W.E.B DuBois called Marcus Garvey " the most dangerous enemy of the Negro race in America" because he felt that Garvey's belief in black separatism worked against the struggle for social equality. The correct answer is C.
The last one
Christmas trees are one thing so it needs a comma after trees not Christmas; cozy sweaters are one thing so it <em>also </em>needs a comma after sweater; and that cancels out the first three.